20199251919

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{12491807}}^1$

素因数の和:12491835

約数の個数: 24

約数和(自身を含む): 34177586688

約数和(自身を除く): 13978334769

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 12491807, 37475421, 87442649, 137409877, 262327947, 412229631, 612098543, 961869139, 1836295629, 2885607417, 6733083973, 20199251919]

約数ペア:

[(1, 20199251919), (3, 6733083973), (7, 2885607417), (11, 1836295629), (21, 961869139), (33, 612098543), (49, 412229631), (77, 262327947), (147, 137409877), (231, 87442649), (539, 37475421), (1617, 12491807)]